Early game items that last through Act 3

What's your personal favorite item that you get in early game (like, Act 1 pre-mountain pass and pre-Underdark) and keep equipped the whole time?

I have a hard time putting down the Gloves of the Growling Underdog. I can't fathom why they're only green; if you're a melee fighter, they basically give you advantage on every attack.

My other one is the Amulet of Misty Step. Giving it to non-casters is so, so good.

Editing to add Gloves of Thievery.